Facing of the roof edges in saw-tooth roofs or similar roofs

ABSTRACT

The invention serves to provide in a ridge roof, along the horizontal junctions between a sloping window and an adjoining roof structure, such as in a saw-tooth roof, facings which each comprise a vapor check profile strip arranged to permit escape of vapor pressures arising within sheathing overlying the adjacent roof structure and escape of condensation from the window without such condensation penetrating to the sheathing.

United States Patent Gobel 1 51 Aug. 29, 1972 [54] FACING OF THE ROOF EDGES IN SAW-TOOTH ROOFS OR SIMILAR ROOFS [72] Inventor: Klaus Gobel, Zeughausstr. 41, Trier,

Germany [22] Filed: Feb. 9, 1970 [2]] Appl. No.: 9,107

Related US. Application Data [63] Continuation of Ser. No. 712,889, Feb. 26,

1968, abandoned.

[30] Foreign Application Priority Data Feb. 27, 1967 Germany ..G 49414 [52] US. Cl. ..52/18, 52/72, 52/90,

[51] Int. Cl ..E04b 7/12, E04b 7/02 [58] Field of Search ..52/200, 18, 72, 97, 94-96 [56] References Cited UNITED STATES PATENTS 1,6 2,554 12/1926 VOlk ..52/200 1,771,107" 7/1930 Abt ..52/72 1,870,549 8/1932 Abt ..52/200 1,921,303 8/1933 Raschka ..52/200 FOREIGN PATENTS OR APPLICATIONS 306,927 6/1955 Switzerland ..52/200 Primary Examiner-Henry C. Sutherland Assistant Examiner-James L. Ridgill, Jr. Attorney-Robert W. Beach [57] ABSTRACT The invention serves to provide in a ridge roof, along the horizontal junctions between a sloping window and an adjoining roof structure, such as in a saw-tooth roof, facings which each comprise a vapor check profile strip arranged to permit escape of vapor pressures arising within sheathing overlying the adjacent roof structure and escape of condensation from the window without such condensation penetrating to the sheathing.

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FACING OF THE ROOF EDGES IN SAW-TOOTH ROOFS R SIMILAR ROOFS This application is a streamlined continuation of application Ser. No. 712,889, filed Feb. 26, 1968, entitled Facing of the Roof Edges in Saw-Tooth Roofs or Similar Roofs, now abandoned.

This invention relates to the facing of the roof edges in sloping'roofs, such as sections of saw-tooth roofs or similar ridge roofs, in which the roof structure is interrupted by a window.

Whereas in the case of normal flat roofsit is only necessary to provide for a good facing at the perimeter of the roof, so that f rstly the roof sheathing is held securely and secondly moisture is prevented from penetrating under the roof sheathing, in the case of sloping roofs, such as sections of saw-tooth roofs, there are a substantial number of edges or joints which require a special facing, where a window and the roof structure are connected. I

As is general in the case of roof structures, more especially in the case of flat roofs, and even in the case of saw-tooth roofs, a free space must be provided to enable any vapor pressure occurringbetween the solid roof structure and the roof sheathing to escape. On the other hand, however, the condensation forming on the inside of a window must be prevented from penetrating into this vapor pressure equalization space between the solid or concrete structure and the roof sheathing, since this would lead to a soaking of the insulating course or of the constructional members with disadvantageous consequences. At the same time provision mustbe made, at the upper window edge or edges for ventilation adapted to the temperature and atmospheric moisture of the interior of the roof structure so as to prevent the formation of condensation altogether. The ventilation of the interior must thereby be independent of the ventilation of the flat roof, so as to prevent the penetrationof atmospheric moisture out of the vapor pressure equalization. space into the interior of the roof and vice versa,as a result of temperature changes.

It is therefore an object of the invention to provide an arrangement incorporating a vapor barrier between theinterior space which is bounded outwardly by the window and the vapor pressure equalization space betweenthe solid or concrete roof structureand the roofsheathing. l H f l l I To achieve this objec't,in accordance with the inven tion a vapor check strip is arrangedso as to extend along theupper and lower edges of the window.. l t

In the case of theupper vapor check profile stripj,this preferably has a part which overlies the upper edge of the window and, stahdingat an angle thereto and ex-. tending parallel to the plane of the window, an overhang part, thelower end of which is stepped andhas a clamping extension piece. Arranged at the knee betweenthe part lying parallel to the window and its stepped end thereis'advantageously 'a rain backwash nose anda windbreak.Providedbetweenwindow and the stepped end thereis advantageously a distancepiecestrip.

In the case of the lowervaporcheck profile strip, this preferably has a vertical'leg, the lower end of which is angledoutwardly and isprovided with asealing lip, and an outwardly inclined leg, the free end of which is angleddownwardly. Disposed at the kneebetween the vertical and the inclined leg there is preferably a flange extending upwardly and parallel to the window, which flange together with the upper side of the inclined leg forms a condensation channel. Arranged on the angled end of the inclined leg there is advantageously an extension piece which holds a locator in the form of a corrugated or helical strip which locates the glass holder. Arranged in the corner formed between the vertical leg and the inclined leg there is conveniently a sealing profile serving to receive the roof sheathing or a connection strip thereof. Provided between the lower vapor check profile strip and the connection profile there are advantageously distance pieces, on which the connection profile is clamped, which distance pieces ensure equalization of the vapor pressure of the solid roof structure below the window.

The invention will be described further, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a vertical cross section showing the upper joint between the solid roof structure and the window, in a ridge saw tooth roof section conforming to the present invention;

FIG. 2 is a view similar to FIG. 1, but showing a second embodiment;

FIG. 3 is a view similar to FIGS. 1 and 2 but showing athird embodiment; l l

FIG. 4 is a view similar to FIGS. 1 to 3, but showing a fourth embodiment;

FIG. 5 is a view similar to FIGS. 1 to 4, but showing a fifth embodiment involving double-glazing;

FIGS. 6a and 6b are fragmentary front elevations illustrating respectively a distance strip and a sealing strip as incorporated in the foregoing embodiments;

FIG. is a vertical cross-section showing the lower connection between the window and the solid roof structure in a ridge saw-tooth roof section conforming to the invention; and

FIG. 8 is a view similar to FIG. 7 but showing another embodiment, and l FIG. 9 is a section taken on line 9-9 of FIG. 8. 1

The execution of glazed sloping roofs, such assawtooth roofs may be regarded as being comparable with normal flat roofs. Over the solid or concrete structure roof slab 1 there is overlaid an insulating course 2land over that a multilayer roof including outer sheathing Between the course 2 and the sheathing 3 is sandwiched a connection strip 4. Between concrete structure l the insulating course 2 there is "a vapor presjsure equalization space 5. l

Thewindowdisposed adjacent bothe concretestruc ture at theridgebf the roof consists of one or more glass panes 6 whichrestina glassholder 7 and can be covered with a cover rails. The glass holder 7 issup ported by means of a screw conne-cti on9 embedded theconcrete structure l l l In accordance'with theinvention, arranged between the interior 10 bounded outwardly by the window and the vapor pressure equalization space 5 at theupper and lower ends of the window thereare respective vapor check profile strips 11 (FIGS: 1 to 5) and 12 (FIGS.7and8). p i t Theup'per vaporcheckprofile strip 11 shown in FIGS. 1 ms has a spacer strip part" 13 overlying the upper edge of the window and, standing at anan'gle thereto and extending parallel to the plane of the window, a flange or overhang part 14 projecting downward from the spacer strip, the lower edge of such flange having a step 15 offset inwardly toward the window which has a clamping extension piece 16, serving to retain a holder 33 which in turn retains a sealing profile 32 (FIG. 2). Arranged on the outside at the knee between the step 15 and the part of the overhang part 14 carrying such step there is a rain backwash nose l7. Clamped as a wind brake between the window and the step 15 there can be a distance and sealing strip 17a, shown in FIG. 2, which ensures ventilation and which may be of helical or gapped form as shown in FIGS. 6a and 6b. So as to prevent any shifting of the sealing strip 17a upwardly, a protrusion 16a may be provided on the vapor check profile above clamping extension piece 16 thereof, as shown in FIG. 2. r

In the embodiment of FIGS. 1 and 2, a downwardly projecting flange 19 is provided on the vapor check profile strip 11 at an angle to the part 13, this flange 19 running parallel to the lateral roof slab edge 18 and being securable by way of the screw connection 9 of the glass holder 7 to the structure 1. A sealing mass 20 is interposed between the vapor check profile flange 19 and the slab edge 18. At the free lower end of the flange 19 there is a nose 21 which prevents canting of the vapor check profile strip 11 and compensates for the thickness of the mass 20.

In the embodiment of FIG. 1, holders 22 are fastened on the overhang part 14 of the vapor check profile strip 11 by means of bolts 23, whereby the holders 22 are elevationally adjustable in relation to the vapor check profile strip 11. The confronting faces of the vapor check profile strip 1 l and the holders 22 have toothings 24, which prevent slipping down of the holders 22.

A sealing profile consisting of two parts 27 and 28 is clampable on the holders 22, which on their lower end are angled and are each provided with a nose 26. The two sealing profile parts 27,28 are designed in such a way that the S-shaped bent-over edge of the roof sheathing 3 or of the connection strip 4 is insertable between ends 29 and 30 thereof in such a way that the roof sheathing 3 or the connection strip 4 remains movable in two directions in relation to the sealing profile 27,28.

The embodiment of FIG. 2 differs from that of FIG. 1 in the design of the sealing profile. In this instance the vapor check profile strip 11 is extended upwardly to form an extension 31 of the vapor check profile strip 1 1 designed as the lower part of the sealing profile itself. The complementary upper part 32 of the sealing profile is clampable onto a holder 33 and onto the lower part 31, and in their turn the resultant ends 34 and 35 of the profile 31,32 receive the S-shaped bent edge of the roof sheathing or, as shown, of the connection strip 4 between them. In addition, a butt profile 36 can be provided, this being retained by protruberances 37 and 38 on the vapor check profile strip 11. So as to permit vapor pressure equalization, the profile part 31 is provided with ventilation apertures 39.

In the embodiments of FIGS. 3 to 5, the vapor check profile strip 1 1 itself in not fastened directly to the roof structure 1. On the contrary, in this instance holders 40 or 40a are provided, which are attachable by means of the screw connection 9 to face 18 of the structure 1.

Between the vapor check profile strip 1 1 and the structure 1 is a sealing strip or mass 20.

In the embodiment of FIG. 3, the vapor check profile strip 11, which approximates to that shown in FIG. 2, is superimposed onto the holders 40 and fastened by means of bolts 23a. The flange 19 can, then, be considerably shorter than in the FIG. 2 embodiment, as shown. The butt profile 36 of FIG. 2 is done away with, but an additional support flange 36a is provided.

In the embodiments of FIGS. 4 and 5, the vapor check profile strip 11 is clampable to the undersides of two-armed holders 40a, namely between extension pieces 41 and angled ends 42 thereof, and a two-part sealing profile, which in the embodiment of FIG. 4 consists of profile parts 43 and 44 and in the embodiment of FIG. 5 consists of profile parts 45 and 46, clamped on the upper sides of the holders 40a. In these cases also the parts of the sealing profile are designed in such a way that the S-shaped curved edge of the roof sheathing or of the connection strip 4 is accommodated therebetween; The sealing profile, which comprises lower profile part 43 or 45 and upper profile part 44 or 46 (and which may also be used as a sealing profile for a conventional flat roof) simultaneously serves as a butt joint.

' In the embodiment of FIG. 4 the lower profile part 43 is drawn down and bent so as to be hook-shaped at its lower end 43a, so that it clamps into corresponding recesses of the angled ends 42 of the holders 40a. At the upper end, the profile part 43 recedes somewhat to provide a profile head 43b which is bent inwardly. A front nose 43c catches behind the upper end of the holder 40a and thus provides, together with the hookshaped end 43a, a tight force fit. The sealing profiles upper part 44 is clampable on the profile head 43b in such a way that two spaced-apart clamping extension pieces 44a and 44b thereof embrace a clamping extension piece 43d of the sealing profiles lower part 43. The roof sheathing 3 or connection strip 4 is taken as far as the upper clamping extension piece 44a and lies between downwardly and outwardly bent end 44c of the upper profile part 44 and outwardly rounded profile head nose 43 c of the lower profile part 43 as well as staggered locating protrusions 43a and 44d of the two profile parts.

Whereas in the embodiment of FIG. 4 the lower ends of the vapor check profile strip 11 and of the sealing profile part 43 clamp behind the corresponding extensions on the end 42 of the holder 40a, in the embodiment of FIG. 5 a further or supplementary holder 47 is provided, which is inserted adjacent the holder 40a beneath the latter. In this embodiment the rain backwash nose 17 also serves as a clamping extension piece, and the edge of the vapor check profile strip 11 is rounded off as a bead 16b.

In the embodiment of FIG. 5 the lower profile part 45 is short in design and at its end 45a is also bent over so as to be hook-shaped, so that this end 45a engages into a corresponding recess 40b of the holder 40a. The profile head 45b approximates to the profile head of FIG. 4 and has an outwardly rounded nose 450 formed with a locating protrusion 45d. Upper sealing profile part 46 extends a long way down over the window 6 and is bent so as to be hook-shaped at its lower end 460. This lower end 46a is clamped onto the holder 47,

whereas upper downwardly and outwardly bent end 46b overlaps and engages over the profile head 45b. The roof sheathing 3 or connection strip 4 extends down as far as junction 400 of the two arms of the holder 40a. 7

In this embodiment, a double-glazing is provided, and a spacer 6a, advantageously having a ventilation aperture therethrough, is seated between the glass panes 6.

A form of lower vapor check profile strip 12 as provided along the lower junction between the glazing and the adjacent solid roof structure is shown in FIGS. 7 and 8 and comprises a vertical leg 48 as well as an outwardly projecting leg 49. The lower end 50 of the vertical leg 48 is angled outwardly and provided with a sealing lip 51. Free end 52 of the inclined leg 49 is angled downwardly. This angled end 52 is formed with an extension piece 53 which holds a locator 54 formed as a corrugated strip and locates the glass holder 7.

Situated at the junction between the vertical leg 48 and the inclined leg 49 is a flange 55 extending upwardly and substantially parallel to the window 6. This flange 55 is connected by a bolt 56 to a holder 57 which also supports the glass holder 7. The upper surface of the projecting leg and the flange 55 form a condensation channel which serves to drain off outwardly any condensation which may form on the inside of the window, without this being able to get into the roofing.

A connection profile 58 is located in the comer formed between the vertical leg 48 and the inclined leg 49, the connection profile 58 serving to receive the roof sheathing or a connection strip 60 of the adjacent solid roof structure 61. A wedging strip 59 serves to ensure that the connection strip 60 is retained in the profile 58.

Provided between the lower vapor check profile strip 12 and the connection profile 58 are distance pieces 62 (FIG. 7) or 63 (FIG. 8) In the embodiment of FIG. 7 the distance pieces 62 are held by means of rivets 64, which also retain the connectionprofile 58; opposite edges of the distance pieces 63 of FIG. 8 are engageable behind corresponding protrusions 65 and 66 of the vapor check profile strip 12. The distance pieces 63 are formed, at the bottom, with an arm 67 having a lip 68, so that the connection profile S8 is locatable lodged between this lip and the upper angled end 69 of the distance piece 63.

The connection profile, which can also be employed it emerges from the connection profile 58. The wedging strip 59, which holds the roof edge or the connection strip 60, is retained between the upper part 58a and the lower lip 58b of the profile 58.

The facing of the invenn'on ensures that vapor pressures arising in the roof above the window and underneath the window can equalize, without moisture getting into the interior of the building conversely out from the interior into the vapor pressure equalization space. Furthermore it ensures that any condensation which may form drains off in such a way that it cannot pe 'letrate into the roof structure.

claim:

1. A ridge roof slope window installation comprising flexible sheet roofing material, a sloping window, and facings along the upper and lower edges of said window, respectively, said upper facing including a strip portion forming with the roof structure a downwardly opening channel receiving therein the upper edge of said window and having an outer flange projecting downward outwardly of said window into overlapping relationship with the upper portion of the outer face of said window, and said upper facing further including above said downwardly opening channel a pair of free edge strip portions projecting oppositely to each other and spaced apart in overlapping relationship and receiving therebetween a reversely-bent edge portion of said flexible sheet roofing material folded about said free edge strip portions.

2. A ridge roof slope window installation as claimed in claim 1, the lower facing including a lower strip portion having spacer means engaginghe inner side of the window for spacing it outward from the roof structure and roofing attaching means carried by said lower strip portion inwardly of the lower portion of the window attaching a portion of the flexible sheet roofing material of the roof below the window extending upward above and inwardly of the lower edge of the window.

3. A ridge roof slope window installation comprising roofing material, a sloping window, and facings along the upper and lower edges of said window, respectively, said upper facing including a strip portion forming with the roof structure a downwardly opening channel receiving therein the upper edge of said window and having an outer flange projecting downward outwardly of said window into overlapping relationship with the upper portion of the outer face of said window, and said upper facing further including roofing attaching means positioning said roofing attached thereto in spaced relationship to said downwardly projecting outer flange for providing a ventillating passage .between said roofing attaching means and said downwardly projecting outer flange. 

1. A ridge roof slope window installation comprising flexible sheet roofing material, a sloping window, and facings along the upper and lower edges of said window, respectively, said upper facing including a strip portion forming with the roof structure a downwardly opening channel receiving therein the upper edge of said window and having an outer flange projecting downward outwardly of said window into overlapping relationship with the upper portion of the outer face of said window, and said upper facing further including above said downwardly opening channel a pair of free edge strip portions projecting oppositely to each other and spaced apart in overlapping relationship and receiving therebetween a reversely-bent edge portion of said flexible sheet roofing material folded about said free edge strip portions.
 2. A ridge roof slope window installation as claimed in claim 1, the lower facing including a lower strip portion having spacer means engaging the inner side of the window for spacing it outward from the roof structure and roofing attaching means carried by said lower strip portion inwardly of the lower portion of the window attaching a portion of the flexible sheet roofing material of the roof below the window extending upward above and inwardly of the lower edge of the window.
 3. A ridge roof slope window installation comprising roofing material, a sloping window, and facings along the upper and lower edges of said window, respectively, said upper facing including a strip portion forming with the roof structure a downwardly opening channel receiving therein the upper edge of said window and having an outer flange projecting downward outwardly of said window into overlapping relationship with the upper portion of the outer face of said window, and said upper facing further including roofing attaching means positioning said roofing attached thereto in spaced relationship to said downwardly projecting outer flange for providing a ventillating passage between said roofinG attaching means and said downwardly projecting outer flange. 